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- 访问量:26793
- 日志数:99
- 图片数:1
- 建立时间:2006-10-25
- 更新时间:2007-02-06
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打造超酷的PHP数据饼图
2007-01-22 23:15:10
打造超酷的PHP数据饼图
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screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" ōnclick="if(!this.resized) {return true;} else {window.open('http://cimg2.163.com/catchpic/1/13/134F99FF33B4336DA2E2E715ECDCF712.gif');}" alt="" src="http://cimg2.163.com/catchpic/1/13/134F99FF33B4336DA2E2E715ECDCF712.gif" ōnload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" border=0>
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0cD%ghC%k#z_SW0源代码:
r%^\)QX;W4e0PHPChina 开源社区门户m ]6mq@g/|4x
PHPChina 开源社区门户6r,@d)v(M2N+Hq
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0cD%ghC%k#z_SW0源代码:
r%^\)QX;W4e0PHPChina 开源社区门户m ]6mq@g/|4x
PHPChina 开源社区门户6r,@d)v(M2N+Hq
PHP代码如下:
PHPChina 开源社区门户^ g&F AU$WRp
//+------------------------+ PHPChina 开源社区门户2_ty)BFY
//| pie3dfun.PHP//公用函数 |
P)}c~G&? @%n~3R5M0//+------------------------+
r;Cqw:KwH0PHPChina 开源社区门户j(l$S6Laq6x
define("ANGLE_STEP", 5); //定义画椭圆弧时的角度步长
?#^;a!|{^v0
m-j,f)b0I}-e0function draw_getdarkcolor($img,$clr) //求$clr对应的暗色 PHPChina 开源社区门户 d'z)^O+I.H"c*j
{
UQ YHnC-k4O9R0$rgb = imagecolorsforindex($img,$clr); PHPChina 开源社区门户$[E`8iE7w/E
return array($rgb["red"]/2,$rgb["green"]/2,$rgb["blue"]/2); PHPChina 开源社区门户zIW8Z8l%vD
} PHPChina 开源社区门户\4pOp]%l
6]'E'vXE(d0function draw_getexy($a, $b, $d) //求角度$d对应的椭圆上的点坐标 PHPChina 开源社区门户UC1i$gV h
{ PHPChina 开源社区门户)E6ma%w2S
$d = deg2rad($d);
#hI+V F2@D:P0return array(round($a*Cos($d)), round($b*Sin($d))); PHPChina 开源社区门户&n&h~9}\{bJM
}
a;OG#x1qx0PHPChina 开源社区门户"N9`^9{
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function draw_arc($img,$ox,$oy,$a,$b,$sd,$ed,$clr) //椭圆弧函数 PHPChina 开源社区门户GA'C;`v0Iq5ir.r.M
{ PHPChina 开源社区门户L#h(c+z2xpf,l;L
$n = ceil(($ed-$sd)/ANGLE_STEP);
~z%G:y:j"vu,B0$d = $sd;
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sc7c!R_#x0list($x0,$y0) = draw_getexy($a,$b,$d); PHPChina 开源社区门户-NM7Elxqz"a
for($i=0; $i<$n; $i++) PHPChina 开源社区门户-vga`i&i&f/w
{
Y1Qj:P(f1O&mO T0$d = ($d+ANGLE_STEP)>$ed?$ed:($d+ANGLE_STEP);
.F"}Hf3x@,w?0list($x, $y) = draw_getexy($a, $b, $d); PHPChina 开源社区门户HcgT|m;Pi2D
imageline($img, $x0+$ox, $y0+$oy, $x+$ox, $y+$oy, $clr);
@L%ai+w!p2dW}:K8HA?0$x0 = $x; PHPChina 开源社区门户2e&k,j(Ico
$y0 = $y; PHPChina 开源社区门户,eV;q2Y3B3?Gc"S,q
}
;qolG.z"n0} PHPChina 开源社区门户xW5yPX%? V a A
PHPChina 开源社区门户s @
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function draw_sector($img, $ox, $oy, $a, $b, $sd, $ed, $clr) //画扇面
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$n = ceil(($ed-$sd)/ANGLE_STEP); PHPChina 开源社区门户8a x6d1UTN
$d = $sd; PHPChina 开源社区门户*EsA!PoK1L
list($x0,$y0) = draw_getexy($a, $b, $d);
$V5gb"t`c9Kd$}0imageline($img, $x0+$ox, $y0+$oy, $ox, $oy, $clr); PHPChina 开源社区门户Gn1v2W,M
for($i=0; $i<$n; $i++) PHPChina 开源社区门户X5nkLM0O0}
{ PHPChina 开源社区门户-n.{.NXgh/Rs]e
$d = ($d+ANGLE_STEP)>$ed?$ed:($d+ANGLE_STEP); PHPChina 开源社区门户|%Ym%~6\'FJ
list($x, $y) = draw_getexy($a, $b, $d);
ur"s`F&z0imageline($img, $x0+$ox, $y0+$oy, $x+$ox, $y+$oy, $clr);
&g'YY6I \AL,hv;zb0$x0 = $x;
4oj2wm6H ?*r sg0$y0 = $y; PHPChina 开源社区门户g9r?8k`
}
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N0imageline($img, $x0+$ox, $y0+$oy, $ox, $oy, $clr);
+K
FR&reM0t~k3H2h0list($x, $y) = draw_getexy($a/2, $b/2, ($d+$sd)/2);
/R x2O'gq`0T)V0Eo0imagefill($img, $x+$ox, $y+$oy, $clr);
!KyVdCB0}
:{
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R9[Ldyo.L0function draw_sector3d($img, $ox, $oy, $a, $b, $v, $sd, $ed, $clr) //3d扇面 PHPChina 开源社区门户tD} | o+]Q"d
{ PHPChina 开源社区门户U
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draw_sector($img, $ox, $oy, $a, $b, $sd, $ed, $clr);
d)_.w)D c&^~;d*j0if($sd<180) PHPChina 开源社区门户,C2oa5U(M9dtC
{ PHPChina 开源社区门户y7]/`5J,ys*q5rp
list($R, $G, $B) = draw_getdarkcolor($img, $clr); PHPChina 开源社区门户x)F:M$E%t
$clr=imagecolorallocate($img, $R, $G, $B); PHPChina 开源社区门户q-X3j2R-NeA
if($ed>180) $ed = 180; PHPChina 开源社区门户"zeuf4_#D|
list($sx, $sy) = draw_getexy($a,$b,$sd);
&H3qw)zE1|zb%OVD0$sx += $ox;
4k*uI!}+?/x
j.BP0$sy += $oy;
!s[?:T'dR|0list($ex, $ey) = draw_getexy($a, $b, $ed);
Vj*z(L3Ai0$ex += $ox;
8W1`-e2Vm}0$ey += $oy;
^2P!F!l!F0imageline($img, $sx, $sy, $sx, $sy+$v, $clr);
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N$A$f_0imageline($img, $ex, $ey, $ex, $ey+$v, $clr); PHPChina 开源社区门户tuiIu'Z8f
draw_arc($img, $ox, $oy+$v, $a, $b, $sd, $ed, $clr); PHPChina 开源社区门户{k|'f(X3Y
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list($sx, $sy) = draw_getexy($a, $b, ($sd+$ed)/2);
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H;p1K R/j;j0$sy += $oy+$v/2;
D&x,A c6lx Zg4x"~bm0$sx += $ox; PHPChina 开源社区门户Y.CPf
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imagefill($img, $sx, $sy, $clr);
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function draw_getindexcolor($img, $clr) //RBG转索引色 PHPChina 开源社区门户5ITs^ Z#aw
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{ PHPChina 开源社区门户F!H&f0v6L
$R = ($clr>>16) & 0xff; PHPChina 开源社区门户%x6w1nj-pAf
$G = ($clr>>8)& 0xff;
M|KuDQkg0$B = ($clr) & 0xff; PHPChina 开源社区门户4_m`
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return imagecolorallocate($img, $R, $G, $B);
&Exh!hB0} PHPChina 开源社区门户1KU'?BlBPQB
PHPChina 开源社区门户~~E2G+VI
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// 绘图主函数,并输出图片 PHPChina 开源社区门户sH1Q&^+RCz4A
// $datLst 为数据数组, $datLst 为标签数组, $datLst 为颜色数组
,~,d)z$]#~#\LI g0// 以上三个数组的维数应该相等 PHPChina 开源社区门户F0~`3N9O
function draw_img($datLst,$labLst,$clrLst,$a=250,$b=120,$v=20,$font=10)
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k5M}dE0$ox = 5+$a;
Ew$V,[Qs]h\0$oy = 5+$b;
e IVJ%muk6f0$fw = imagefontwidth($font);
:c'y2c?
X)x&?$[0$fh = imagefontheight($font);
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V Q,Q d(?O-e%G0$n = count($datLst);//数据项个数 PHPChina 开源社区门户U/s]7xY
)NC$p4a1t&a6}`0$w = 10+$a*2;
JiO*`;B#gFgST0$h = 10+$b*2+$v+($fh+2)*$n;
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$img = imagecreate($w, $h);
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6_z#JD
I$W4i"w0//转RGB为索引色 PHPChina 开源社区门户5Q8U e*i x.R
for($i=0; $i<$n; $i++) PHPChina 开源社区门户9X _.qqi~w
$clrLst[$i] = draw_getindexcolor($img,$clrLst[$i]); PHPChina 开源社区门户8~@7XJ1MXgyO
PHPChina 开源社区门户`)MMju}5CUo
$clrbk = imagecolorallocate($img, 0xff, 0xff, 0xff);
"S0s3x\-ZvL1K0$clrt = imagecolorallocate($img, 0x00, 0x00, 0x00); PHPChina 开源社区门户(^HAX_;m
&X0m:]fK&iJ!r-T8Dc0//填充背景色 PHPChina 开源社区门户.?!_.S(V;IqKx
imagefill($img, 0, 0, $clrbk); PHPChina 开源社区门户^
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PHPChina 开源社区门户DGX-wA y*hi;I5x*M
//求和
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c(H?0$tot = 0;
A&JG}E!Q(I0for($i=0; $i<$n; $i++) PHPChina 开源社区门户`xn{.crp/jz7{,v
$tot += $datLst[$i]; PHPChina 开源社区门户 r2TK5r"B*I!{K-kGto
$sd = 0;
q&N1N-pY0H0$ed = 0; 333 PHPChina 开源社区门户a/M*X0up+|H_:Z
$ly = 10+$b*2+$v; PHPChina 开源社区门户"c4iR b]3X
for($i=0; $i<$n; $i++)
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op0$sd = $ed;
,LDm ?Rr]0$ed += $datLst[$i]/$tot*360;
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j0PHPChina 开源社区门户cxN3xe5WhG7r
//画圆饼
+]-M'Oag1sd0draw_sector3d($img, $ox, $oy, $a, $b, $v, $sd, $ed, $clrLst[$i]); //$sd,$ed,$clrLst[$i]);
'~:K.j&Q:D5BBP K0
MF%CL&gnL0//画标签
+~
w4O:p+v4q\%W0imagefilledrectangle($img, 5, $ly, 5+$fw, $ly+$fh, $clrLst[$i]); PHPChina 开源社区门户Ex*[+Tu.v
imagerectangle($img, 5, $ly, 5+$fw, $ly+$fh, $clrt);
vo"FO7p)u,uv,zi0//imagestring($img, $font, 5+2*$fw, $ly, $labLst[$i].":".$datLst[$i]."(".(round(10000*($datLst[$i]/$tot))/100)."%)", $clrt); PHPChina 开源社区门户)Td
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dC%mi!h/hT\0$str = iconv("GB2312", "UTF-8", $labLst[$i]); PHPChina 开源社区门户%B'J ]WWr8\ Q
ImageTTFText($img, $font, 0, 5+2*$fw, $ly+13, $clrt, "./simsun.ttf", $str.":".$datLst[$i]."(".(round(10000*($datLst[$i]/$tot))/100)."%)"); PHPChina 开源社区门户WV9]BPa"Uz{
$ly += $fh+2; PHPChina 开源社区门户 v)l(F7j)M M/y!h%[b
} PHPChina 开源社区门户X}!JU4D&cWQ
PHPChina 开源社区门户kn)x4Dk.zLA
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//输出图形
~*fprD,Y0header("Content-type: image/png");
5^3bgPU(N'R0PHPChina 开源社区门户%gE?
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//输出生成的图片 PHPChina 开源社区门户B_R
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$imgFileName = "../temp/".time().".png"; PHPChina 开源社区门户f0g+?D&Z9]HO
imagepng($img,$imgFileName); PHPChina 开源社区门户s(X
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echo '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
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PHPChina 开源社区门户O8gl1aR {
$datLst = array(30, 10, 20, 20, 10, 20, 10, 20); //数据
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m5F-kEx/MC+{0$labLst = array("中国科技大学", "安徽理工大学", "清华大学", "北京大学", "南京大学", "上海大学", "河海大学", "中山大学"); //标签
8f(Z]5Kc0$clrLst = array(0x99ff00, 0xff6666, 0x0099ff, 0xff99ff, 0xffff99, 0x99ffff, 0xff3333, 0x009999); PHPChina 开源社区门户
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PHPChina 开源社区门户8D9BnX:rX%^6N
//画图
B/]'{6PpY0draw_img($datLst,$labLst,$clrLst); PHPChina 开源社区门户\N`bB!Kcr
?> PHPChina 开源社区门户QO!mH qce;T
PHPChina 开源社区门户v
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